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Re: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page granularity

Started byJulien Grall <julien.grall@citrix.com>
First post2015-09-01 19:20 +0200
Last post2015-09-01 19:20 +0200
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  Re: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page  granularity Julien Grall <julien.grall@citrix.com> - 2015-09-01 19:20 +0200

#1216977 — Re: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page granularity

FromJulien Grall <julien.grall@citrix.com>
Date2015-09-01 19:20 +0200
SubjectRe: [PATCH v3 19/20] xen/privcmd: Add support for Linux 64KB page granularity
Message-ID<q3XnY-4ya-1@gated-at.bofh.it>
Hi Stefano,

On 10/08/15 13:03, Stefano Stabellini wrote:
>> +			xen_pfn = xen_page_to_pfn(page);
>> +		}
>> +		fn(pfn_to_gfn(xen_pfn++), data);
> 
> What is the purpose of incrementing xen_pfn here?

Because the Linux page is split into multiple xen_pfn, so we want to get
the next xen_pfn for the next iteration.

Regards,

-- 
Julien Grall
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